Hypnotism techniques were in use from very old times. Ancient priests and shamans used them before going to war to prepare the warriors mind. Hypnotism can be used to create a trance like situation where the subject will accept any order or instruction given to them without even realizing what they are doing. Nowadays hypnotism is used by medical professionals to treat psychological disorders or help people with behavioral problems, addictions etc.
People use self hypnosis guide for many common problems like weight loss, drug addiction, smoking, stress reduction. Self hypnosis guides for weight loss is sought by many people. Teenagers and models looking for crash dieting might well use these techniques. It will help them to adjust to the new routine. Celebrities also ask for self hypnotic guides to get over with stage fright. Politicians use the technique to alleviate any fear of public speaking.